CVE-2019-10140 Null dereference in kernel:

What is CVE-2019-10140?

CVE-2019-10140 is a medium-severity vulnerability in Linux kernel, published on 15 Aug 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability was found in Linux kernel's, versions up to 3.10, implementation of overlayfs. An attacker with local access can create a denial of service situation via NULL pointer dereference in ovl_posix_acl_create function in fs/overlayfs/dir.c. This can allow attackers with ability to create directories on overlayfs to crash the kernel creating a denial of service (DOS).

Weakness: CWE-476

Which versions are affected by CVE-2019-10140?

It affects 2 products.

Products include Linux kernel, Redhat Enterprise Linux.

How do I fix CVE-2019-10140?

Apply the vendor's patch.

Is CVE-2019-10140 being exploited?

There is no known exploitation of CVE-2019-10140 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-cqfm-vfh2-jprp.